On Tue, Apr 23, 2019 at 7:20 PM Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote:
On Tue, Apr 23, 2019 at 8:38 AM Richard Shaw <hobbes1069@xxxxxxxxx> wrote:
>
> I made the mistake of editing my grubenv while converting my system from BIOS to UEFI.
>
> I have since manually used grub2-editenv successfully but I still get "grub2-editenv: error: environment block too small." on kernel upgrades. I've even tried manually re-padding the file with # to get to 1024 bytes.
>
> I have also filed and issue upstream that grub2-editenv is too fragile. It should be able to automatically re-pad the file to 1024 bytes.
>
> How do I "fix" this?
Is it really 1024 bytes?
# stat /boot/efi/EFI/fedora/grubenv
# stat /boot/efi/EFI/fedora/grubenv
File: /boot/efi/EFI/fedora/grubenv
Size: 1024 Blocks: 8 IO Block: 4096 regular file
Device: 10301h/66305d Inode: 299 Links: 1
Access: (0700/-rwx------) Uid: ( 0/ root) Gid: ( 0/ root)
Context: system_u:object_r:dosfs_t:s0
Access: 2019-04-22 19:00:00.000000000 -0500
Modify: 2019-04-23 09:29:08.000000000 -0500
Change: 2019-04-23 09:29:09.510000000 -0500
I'm not exactly sure when we started doing this, but..
# ls -ls /boot/grub2
total 4
4 lrwxrwxrwx. 1 root root 25 Apr 18 11:34 grubenv -> ../efi/EFI/fedora/grubenv
It's actually a symlink on both BIOS and UEFI. This file will be on
the /boot volume (typically ext4) on BIOS systems, and it will be on
the EFI System partition (FAT16 if anaconda creates it) on UEFI. But
if you did a conversion from BIOS to UEFI, it's possible this symlink
is broken and that's why you're getting the error.
I reinstalled all the efi related packages so things would get "created" properly.
# file grub2/grubenv
grub2/grubenv: symbolic link to ../efi/EFI/fedora/grubenv
# parted -l | grep EFI
1 1049kB 211MB 210MB fat16 EFI System Partition boot, esp
If the real grub env on /boot/efi doesn't actually exist then you
might need to do:
#grub2-editenv /boot/efi/EFI/fedora/grubenv create
I may move mine to a backup and try that anyway.
Thanks,
Richard
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